Why was trade crucial to the survival of ghana, mali, and songhai?

Explanation:

Trade is very crucial for the survival of Ghana and Mali does not have much resources, so they trade with other people. Some depend on food in exchange for what Ghana and Mali have to offer. Both countries are located close to the equator, but also has a lot of desert. Deserts provide no food, so they depend on other nations that grow food to supply them. Trade is also crucial for other nations too!

Trade was crucial to survive of Ghana, Mali and Songhai because it was the only way in that time to get resources because of the lack of them in their own land.

Explanation:

In Ghana, Mali and Songhai the possibility to get resources by their own is very poor, they have non-fertile lands, full of deserts, which couldn't provide food. In that time, to balance that lack of resources, trade between other nations were the best and almost only way to survive.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.

answer; a group made up of people from difference cultures;